Transfer and teleportation of quantum states encoded in decoherence-free subspace

TL;DR

This paper proposes a method for quantum state transfer and teleportation using decoherence-free subspace encoding in a quantum network, employing cavity-assisted interactions with single-photon pulses.

Contribution

It introduces a novel scheme for quantum state transfer and teleportation in decoherence-free subspaces with detailed implementation and feasibility analysis.

Findings

Successful implementation of logic-qubit Hadamard gate

Implementation of two-logic-qubit conditional gate

Discussion of experimental feasibility

Abstract

Quantum state transfer and teleportation, with qubits encoded in internal states of the atoms in cavities, among spatially separated nodes of a quantum network in decoherence-free subspace are proposed, based on a cavity-assisted interaction by single-photon pulses. We show in details the implementation of a logic-qubit Hadamard gate and a two-logic-qubit conditional gate, and discuss the experimental feasibility of our scheme.